* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --success: #10b981;
  --border: #475569;
  --gradient-1: #0ea5e9;
  --gradient-2: #8b5cf6;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  padding: 15px 0;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.nav {
  display: flex;
  gap: 30px;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav a:hover {
  color: var(--accent);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(14, 165, 233, 0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 16px;
}

/* Hero Section */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 20px;
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat {
  text-align: center;
}

.stat-num {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 14px;
  color: var(--text-muted);
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.agent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.agent-avatar {
  font-size: 80px;
  margin-bottom: 15px;
}

.agent-name {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
}

.agent-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--success);
  font-weight: 500;
  margin-bottom: 20px;
}

.status-dot {
  width: 10px;
  height: 10px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.agent-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.skill-tag {
  background: var(--bg-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* Features Section */
.features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  text-align: center;
  margin-bottom: 60px;
  font-weight: 700;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 10px 40px rgba(14, 165, 233, 0.15);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Instructions Section */
.instructions {
  padding: 100px 0;
  background: var(--bg-primary);
}

.instructions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.instruction-category {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
}

.instruction-category h3 {
  font-size: 20px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.instruction-category ul {
  list-style: none;
}

.instruction-category li {
  color: var(--text-secondary);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.instruction-category li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

.instructions-note {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 30px;
  text-align: center;
}

.instructions-note p {
  color: var(--text-secondary);
}

/* Benefits Section */
.benefits {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.benefit-item {
  display: flex;
  gap: 15px;
  align-items: flex-start;
}

.benefit-check {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--gradient-1), var(--gradient-2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  flex-shrink: 0;
}

.benefit-item h4 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.benefit-item p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* FAQ Section */
.faq {
  padding: 100px 0;
  background: var(--bg-primary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 15px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  padding: 20px 25px;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 17px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-icon {
  font-size: 24px;
  color: var(--accent);
  transition: transform 0.3s;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
}

.faq-answer p {
  padding: 0 25px 20px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Contact Section */
.contact {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.contact-inner {
  text-align: center;
}

.contact h2 {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 15px;
}

.contact p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

.contact-actions {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  font-size: 24px;
  font-weight: 700;
  display: block;
  margin-bottom: 10px;
}

.footer-left p,
.footer-right p {
  color: var(--text-muted);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .agent-card {
    margin: 0 auto;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .contact-actions {
    flex-direction: column;
    align-items: center;
  }
}